Finding the Fourth Proportional to 21,960,676.79, 30,305,736.15 and 12,171,752.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,960,676.79 : 30,305,736.15 = 12,171,752.27 : x
2. Step 2: Convert to fraction form
   21,960,676.79/30,305,736.15 = 12,171,752.27/x
3. Step 3: Cross multiply
   21,960,676.79x = 30,305,736.15 × 12,171,752.27
4. Step 4: Simplify right side
   21,960,676.79x = 368,873,912,777,783.50
5. Step 5: Solve for x
   x = 368,873,912,777,783.50/21,960,676.79
6. Step 6: Final answer
   x = 16,797,019.34